Capacitively Coupled Silicon Modulator Fabricated on the Standard Silicon-on-Insulator Platform

IF 2.1 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Photonics Journal Pub Date : 2025-02-06 DOI:10.1109/JPHOT.2025.3539248

Ahmed Shariful Alam;Hao Sun;Joyce K. S. Poon;José Azaña;J. Stewart Aitchison

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引用次数: 0

Abstract

Silicon-on-insulator (SOI) based silicon modulators are essential for modern optical communication links. Almost all these modulators are based on a rib waveguide structure. In this paper, we report our observation of a silicon modulator in a silicon strip waveguide. Such waveguide have a simpler structure, higher optical confinement, lower dispersion and can result in modulators with improved bandwidth compared to a rib waveguide. We demonstrated a novel strip waveguide-based Mach-Zehnder interferometer (MZI) silicon modulator fabricated in the Multi Project Wafer (MPW) run from a commercial foundry. Using a self-heterodyne measurement system we estimated a half-wave-voltage-length product (V

$_{\pi }$

L) of

$\sim$

9.4 V.cm at 20 MHz modulation signal. The electro-optic (EO) measurement of the proposed modulator can generate the first order sidebands up to 68 GHz and almost a flat frequency response was observed.

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来源期刊

IEEE Photonics Journal ENGINEERING, ELECTRICAL & ELECTRONIC-OPTICS

CiteScore

4.50

自引率

8.30%

发文量

489

审稿时长

1.4 months

期刊介绍： Breakthroughs in the generation of light and in its control and utilization have given rise to the field of Photonics, a rapidly expanding area of science and technology with major technological and economic impact. Photonics integrates quantum electronics and optics to accelerate progress in the generation of novel photon sources and in their utilization in emerging applications at the micro and nano scales spanning from the far-infrared/THz to the x-ray region of the electromagnetic spectrum. IEEE Photonics Journal is an online-only journal dedicated to the rapid disclosure of top-quality peer-reviewed research at the forefront of all areas of photonics. Contributions addressing issues ranging from fundamental understanding to emerging technologies and applications are within the scope of the Journal. The Journal includes topics in: Photon sources from far infrared to X-rays, Photonics materials and engineered photonic structures, Integrated optics and optoelectronic, Ultrafast, attosecond, high field and short wavelength photonics, Biophotonics, including DNA photonics, Nanophotonics, Magnetophotonics, Fundamentals of light propagation and interaction; nonlinear effects, Optical data storage, Fiber optics and optical communications devices, systems, and technologies, Micro Opto Electro Mechanical Systems (MOEMS), Microwave photonics, Optical Sensors.